ALM-4616 Abnormal IP Clock Link Alarm

Description

This alarm is reported when the IP clock link is abnormal.

Attribute

Alarm ID	Alarm Severity	Alarm Type
4616	Major	Fault

Parameters

ID	Name	Meaning
1	Site No.	Number of the site where the faulty board or module is located Value range: 0-2047
2	Board Type	Number of the type which the faulty board belongs to. 86:DPTU
3	Board No.	Number of the fault board 1: DPTU on COMM1 2: DPTU on COMM2
4	PassNo	Number of the passage where the faulty board is located.
5	SubLink No.	Alarm sub-category number 255:None
6	Cell Index	Index of the cell where the board or module is located 0-2047: Cell index of the faulty cell in the data configuration 65535: None
7	Site Type	Type of the site where the faulty board is located. 17:DBS3900 GSM; 18:BTS3900 GSM; 19:BTS3900A GSM; 20:DBS3036; 21:BTS3036; 22:BTS3036A;
8	RackNo	Number of the rack where the faulty board is located.
9	BoxNo	Number of the subrack where the faulty board is located.
10	SlotNo	Number of the slot where the faulty board is located.
11	Site Name	Site Name
12	Alarm Attribute	Alarm Character 0:Normal 1:Transient Count

Impact on the System

The communication between the BTS and the clock server is abnormal. The clock signal packets cannot be received normally, resulting in no clock signals for the BTS.

System Actions

None.

Possible Causes

The network fault exists between the BTS and the clock server.
The clock server is faulty, or the IPCLK configuration is improper

Procedure

Run the DSP BTSIPCLK command on the MML client.
1. Check the IP address and ports of the IP clock server. Ensure that they are properly configured. Check whether the alarm is cleared.
  Y => The alarm is cleared. No further action is required.
  
  N => The alarm is not cleared. Go to procedure b.
2. Check the settings of the handshake timer for the IP clock client and server. The handshake period C must be greater than or equal to the handshake period B.
Check for network faults between the BTS and the clock server.
Check the configuration of the IP clock server.
If the fault cannot be located after the preceding procedures are performed, [HW]Contact Huawei[/HW].